lfonso VI, 1030-1109, Spanish king of Leon
(1065-1109) and Castile (1072-1109). He inherited Leon from his
father, Ferdinand I. Defeated by his brother Sancho II of Castile,
he fled to the court of Al-Mamun, Moorish ruler of Toledo. After
Sanchos assassination (1072) he succeeded to the throne of
Castile and took Galicia from his brother García (1073), thus
becoming the most powerful Christian ruler in Spain. He
encouraged Christians in Moslem lands to migrate north. He raided
Moslem territory and penetrated as far as Tarifa. After the
conquest of strategic Toledo (1085), he took many other cities
and reached the line of the Tagus. Aroused by his advance, Abbad
III and his Moslem allies called to their aid the Almoravide
Yusuf ibn Tashufin, who defeated Alfonso in 1086. Again the
Spanish lost in 1108; Alfonsos only son died in the battle.
Alfonsos reign gave a great crusading impulse to the
reconquest of Spain and was notable for the exploits of the Cid.
His court at Toledo became the center of cultural relations
between Moslem and Christian Spain, while French influence also
grew strong through his many French followers. At this time the
Cluniac reform was introduced into Spain. Alfonso was succeeded
by his daughter Urraca. [The Illustrated Columbia Encyclopedia,
1969]